Children Safey & Premium Quality We don't use cheap and thin rubber like other companies do as we don't want your little ones to get hurt. Considering that kids actually would put these rubber ducks in their mouths, we stick to US Toy Safety standard which require no lead and plasticizer. Our rubber ducks are much thinker, softer and better quality. They are perfect for kids and not becoming a chocking hazard. Squeak Sound These rubber ducks squeak when you squeeze them (Somehow the Walmart ones don't do). Kids will quack at them while they are swimming in the tub and try to swim or imitate them in the water. Bath Time Fun Trust us. Kids just love them and It will bring great joy to your household. They are great gifts for your children, grandchildren, nieces and nephews. Definitely makes bath time so much more fun! Specifications Size: Regular: 2.5 inch x 2.5 inch x 2.25 inch (L*W*H). Mini: Size: 1.5 inch x 1.5 inch x 1.25 inch (L*W*H). Quantity: 12 ducks per pack.Nue Boss